2 Chronicles (Author Compiled by Isaiah and Ezra from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
Chapter 17
14And these are the numbers of them according to their fathers' houses. Of Judah the captains of thousands: Adnah the captain, and with him three hundred thousand mighty men of valour;
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.